Robo Silicon Private Limited

What is the classification for the services received by M/s Robo silicon Private Limited from the state of Karnataka for which Royalty is being paid by M/s Robo silicon Private Limited? Whether the said service can be classified under the heading 9973 specifically under 997337 as licensing services for the right to use minerals including its exploration and evaluation or any other service under notification No 11/2017 –Central Tax (Rate) dated 28.06.2017 ?
What is the applicable rate of GST on the services received by them.But the Applicant requested to permit them to withdraw the application filed for advance ruling vide their letter dated 26-02-2019.